software engineering MCQs – Page 127

Practise multiple-choice questions from software engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

2521. Exception handling is a mechanism to provide some fault avoidance ?
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A. False

B. TRUE

2522. Choose the fault class in which the following automated static analysis check would fall:Pointer Arithmetic ?
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A. Input/Output Faults

B. Interface faults

C. Data Faults

D. Storage management faults
2523. A system resource that has a value and has to be protected is known as ________________________?
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A. Vulnerability

B. None of the mentioned

C. Asset

D. Control

2524. A chemical plant system may detect excessive pressure and open a relief valve to reduce these pressures before an explosion occurs. What kind of dependability and security issue the example states ?
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A. Hazard detection

B. Damage limitation

C. Hazard detection and removal

D. Hazard avoidance

2525. Which of the following examples does not involve dependability engineering ?
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A. Telecommunications

B. Medical Systems

C. Library Management

D. Power Systems

2526. POFOD stands for___________________?
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A. Possibility of failure on demand

B. Probability of failure on demand

C. Possibility of failure of data

D. Probability of failure of data

2527. Which of the following is a technique covered in Static Analysis ?
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A. All of the mentioned

B. Formal verification

C. Model checking

D. Automated program analysis

2528. Static analysis is now routinely used in the development of many safety and security critical systems?
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A. FALSE

B. True
2529. What is the term for development process organised such that faults in the system are detected and repaired before delivery to the customer ?
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A. Fault tolerance

B. None of the mentioned

C. Fault Avoidance

D. Fault detection

2530. To specify security requirements, one should identify the risks that are to be dealt with ?
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A. TRUE

B. False
2531. Circumstances that have potential to cause loss or harm is known as___________________?
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A. Vulnerability

B. Threat

C. Attack

D. Control

2532. What is a Range check ?
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A. None of the mentioned

B. Use information about the input to check if it is reasonable rather than an extreme value

C. Check that the input falls within a known range

D. Check that the input does not exceed some maximum size e.g. 40 characters for a name

2533. Which of the following is a Strategy to achieve Software diversity ?
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A. Explicit specification of different algorithms

B. Different programming languages

C. All of the mentioned

D. Different design methods and tools

2534. Controls that are intended to ensure that attacks are unsuccessful is analogous to ______________ in dependability engineering?
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A. Fault tolerance

B. Fault avoidance

C. Fault Recovery

D. Fault detection

2535. A password checking system that disallows user passwords that are proper names or words that are normally included in a dictionary is an example of ________________ with respect to security systems?
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A. asset

B. control

C. attack

D. risk

2536. Select the disadvantage of using Formal methods ___________________?
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A. They require the use of specialised notations that cannot be understood by domain experts

B. Producing a mathematical specification requires a detailed analysis of the requirements

C. Concurrent systems can be analysed to discover race conditions that might lead to deadlock

D. All of the mentioned

2537. Which of the following is incorrect with respect to Model Checking ?
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A. Model checking is particularly valuable for verifying concurrent systems

B. The model checker explores all possible paths through the model

C. All of the mentioned

D. Model checking is computationally very inexpensive
2538. What are security controls ?
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A. All of the mentioned

B. Controls that are intended to detect and repel attacks

C. Controls that are intended to support recovery from problems

D. Controls that are intended to ensure that attacks are unsuccessful

2539. Consider a case where the system is unavailable and cannot deliver its services to users. What type of failure is being described here ?
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A. Loss of service

B. None of the mentioned

C. System/data corruption

D. Incorrect service delivery

2540. Which of the following is not a Protection system ?
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A. None of the mentioned

B. System to shut down a reactor if temperature/pressure are too high

C. System to indicate not returning of the library book

D. System to stop a train if it passes a red light